/*掌云科技 Website Styles */
* { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.6;
            color: #1a1a1a;
            background: #fafafa;
        }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        
        /* Buttons */
        .btn {
            display: inline-block; padding: 14px 32px; border-radius: 50px; text-decoration: none;
            font-weight: 600; font-size: 1rem; transition: all 0.3s ease; cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white;
            box-shadow: 0 4px 15px rgba(102,126,234,0.4);
        }
        .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(102,126,234,0.5); }
        .btn-outline {
            border: 2px solid #667eea; color: #667eea; margin-left: 12px;
        }
        .btn-outline:hover { background: #667eea; color: white; }
        
        /* Section labels */
        .section-label {
            display: inline-block; padding: 6px 16px; border-radius: 20px; font-size: 0.875rem;
            font-weight: 600; background: rgba(102,126,234,0.1); color: #667eea; margin-bottom: 16px;
        }
        .section-title {
            font-size: 2.5rem; font-weight: 700; margin-bottom: 16px; line-height: 1.2;
        }
        .section-desc {
            font-size: 1.125rem; color: #666; max-width: 600px;
        }
        
        /* Navbar - Dark Hero Friendly */
        .navbar {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(10, 10, 10, 0.85); backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.05); padding: 16px 0;
            transition: background 0.5s ease, border-color 0.5s ease;
        }
        .navbar.scrolled {
            background: rgba(255,255,255,0.95);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }
        .navbar .container { display: flex; justify-content: space-between; align-items: center; }
        .nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #ffffff; font-weight: 700; font-size: 1.25rem; transition: color 0.3s; }
        .navbar.scrolled .nav-logo { color: #1a1a1a; }
        .nav-logo img { width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,0.95); padding: 4px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
        .nav-links { display: flex; gap: 32px; list-style: none; }
        .nav-links a {
            text-decoration: none; color: rgba(255,255,255,0.8); font-weight: 500; transition: color 0.3s;
        }
        .nav-links a:hover { color: #818cf8; }
        .navbar.scrolled .nav-links a { color: #333; }
        .navbar.scrolled .nav-links a:hover { color: #667eea; }
        .nav-cta {
            background: linear-gradient(135deg, #667eea, #764ba2); color: white !important;
            padding: 8px 20px; border-radius: 20px;
        }
        
        /* Hero - Dark Opening */
        .hero {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, #0a0a0a 0%, #111827 30%, #1e293b 60%, #334155 85%, #f8f9ff 100%);
            color: #ffffff;
            position: relative;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 20%, rgba(99,102,241,0.15) 0%, transparent 50%),
                        radial-gradient(ellipse at 70% 80%, rgba(139,92,246,0.1) 0%, transparent 50%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 1;
        }
        .hero .container {
            display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
        }
        .hero-title {
            font-size: 3rem; font-weight: 800; line-height: 1.2; margin-bottom: 20px;
            color: #ffffff;
        }
        .hero .highlight { color: #818cf8; }
        .hero-subtitle {
            font-size: 1.125rem; color: #94a3b8; margin-bottom: 32px; line-height: 1.8;
        }
        .hero-actions { display: flex; }
        .hero-stats { display: flex; gap: 40px; margin-top: 48px; }
        .hero-stat-value { font-size: 2rem; font-weight: 700; color: #818cf8; }
        .hero-stat-label { font-size: 0.875rem; color: #64748b; margin-top: 4px; }
        .hero-visual { display: flex; justify-content: center; }
        
        /* CSS Phone Shell */
        .css-phone {
            width: 300px; height: 600px; background: #1a1a1a; border-radius: 40px;
            padding: 12px; position: relative;
            box-shadow: 0 40px 80px rgba(0,0,0,0.2), 0 0 0 1px rgba(255,255,255,0.1);
        }
        .css-phone-notch {
            position: absolute; top: 12px; left: 50%; transform: translateX(-50%);
            width: 120px; height: 28px; background: #1a1a1a;
            border-radius: 0 0 20px 20px; z-index: 10;
        }
        .css-phone-notch::after {
            content: ''; position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
            width: 12px; height: 12px; background: #333; border-radius: 50%;
        }
        .phone-tagline {
            text-align: center;
            color: #888;
            font-size: 0.85rem;
            margin-bottom: 32px;
        }
        .phone-skeleton-list {
            padding: 0 24px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .phone-skeleton-row {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .phone-skeleton-bar {
            height: 8px;
            background: rgba(102,126,234,0.25);
            border-radius: 4px;
        }
        .phone-skeleton-bar-fill {
            background: linear-gradient(90deg, #667eea, #764ba2);
            margin-bottom: 6px;
        }
        .phone-stats {
            display: flex;
            gap: 12px;
            padding: 0 20px 20px;
        }
        .phone-stat-card {
            flex: 1;
            background: rgba(255,255,255,0.7);
            border-radius: 12px;
            padding: 12px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .phone-stat-value {
            font-size: 1.4rem;
            font-weight: 700;
            color: #667eea;
        }
        .phone-stat-label {
            font-size: 0.7rem;
            color: #888;
            margin-top: 2px;
        }
        .phone-chart {
            background: rgba(255,255,255,0.7);
            border-radius: 16px;
            margin: 0 20px;
            padding: 16px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .phone-chart-title {
            font-size: 0.8rem;
            font-weight: 600;
            color: #333;
            margin-bottom: 12px;
        }
        .phone-chart-bars {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            height: 80px;
            gap: 6px;
        }
        .phone-chart-bar {
            flex: 1;
            border-radius: 4px 4px 0 0;
            min-height: 8px;
        }
        .phone-chart-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 6px;
            font-size: 0.65rem;
            color: #999;
        }
        .phone-chart-labels span {
            flex: 1;
            text-align: center;
        }
        .about-image-photo {
            width: 100%;
            max-width: 560px;
            height: auto;
            border-radius: 20px;
            box-shadow: 0 20px 50px rgba(0,0,0,0.12);
        }
        .about-image {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .css-phone-screen {
            width: 100%; height: 100%; border-radius: 30px; overflow: hidden;
            background: linear-gradient(180deg, #FFFFFF 0%, #F0F4FF 50%, #E0E8FF 100%);
        }
        .phone-status-bar {
            display: flex; justify-content: space-between; align-items: center;
            padding: 16px 20px 8px; color: #333; font-size: 0.8rem; font-weight: 600;
        }
        .phone-status-icons { display: flex; gap: 6px; align-items: center; color: white; }
        .phone-app-header {
            display: flex; align-items: center; gap: 12px; padding: 20px; color: #1a1a1a;
        }
        .phone-app-logo {
            width: 40px; height: 40px; background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 12px; display: flex; align-items: center; justify-content: center;
            font-size: 1.2rem;
        }
        .phone-app-title { font-size: 1.1rem; font-weight: 700; }
        .phone-exam-card {
            background: rgba(255,255,255,0.7); border-radius: 16px; padding: 16px;
            margin: 8px 20px; color: #1a1a1a;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .phone-exam-title { font-size: 0.95rem; font-weight: 600; margin-bottom: 8px; color: #1a1a1a; }
        .phone-progress-bar {
            height: 6px; background: rgba(0,0,0,0.1); border-radius: 3px;
            overflow: hidden; margin-bottom: 4px;
        }
        .phone-progress-fill {
            height: 100%; background: linear-gradient(90deg, #667eea, #764ba2); border-radius: 3px;
        }
        .phone-progress-text { font-size: 0.75rem; color: #666; }
        
        /* Products */
        .products { padding: 100px 0; background: white; }
        .products-header { text-align: center; margin-bottom: 64px; }
        .products-grid {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
        }
        .product-icon-img {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            margin: 0 auto 16px;
            display: block;
        }
        .product-card {
            cursor: pointer;
            background: white;
            border-radius: 20px;
            padding: 28px 24px;
            border: 1px solid #f0f0f0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .product-card:hover {
            box-shadow: 0 20px 40px rgba(0,0,0,0.12);
        }
        .product-icon {
            width: 56px; height: 56px; border-radius: 16px;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.75rem; margin-bottom: 16px;
        }
        .product-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 8px; }
        .product-card p { color: #666; font-size: 0.95rem; }
        
        /* Screenshots */
        .screenshots {
            padding: 100px 0;
            background: linear-gradient(180deg, #f8f9ff 0%, #ffffff 100%);
        }
        .screenshots-header { text-align: center; margin-bottom: 64px; }
        .screenshots-carousel {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
        }
        .screenshot-item { text-align: center; }
        .screenshot-frame {
            width: 100%; aspect-ratio: 9/16; border-radius: 16px; overflow: hidden;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1); margin-bottom: 16px;
        }
        .screenshot-frame img {
            width: 100%; height: 100%; object-fit: cover; display: block;
        }
        .screenshot-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; }
        .screenshot-desc { font-size: 0.9rem; color: #666; }
        
        /* About */
        .about { padding: 100px 0; background: white; }
        .about-grid {
            display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
        }
        .about-content .section-desc { margin-bottom: 32px; }
        .values-list { display: grid; gap: 20px; }
        .value-item { display: flex; gap: 16px; }
        .value-icon {
            width: 48px; height: 48px; border-radius: 12px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white; display: flex; align-items: center; justify-content: center;
            font-size: 1.5rem; flex-shrink: 0;
        }
        .value-item h4 { font-size: 1.1rem; margin-bottom: 4px; }
        .value-item p { font-size: 0.9rem; color: #666; }
        .about-image {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        /* Download */
        .download {
            padding: 100px 0;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
        }
        .download .section-label {
            background: rgba(255,255,255,0.2); color: white;
        }
        .download-content { text-align: center; }
        .download .section-title { color: white; }
        .download .section-desc {
            color: rgba(255,255,255,0.9); margin: 0 auto 48px;
        }
        .download-features {
            display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 48px;
        }
        .download-feature {
            background: rgba(255,255,255,0.1); border-radius: 16px; padding: 24px;
        }
        .download-feature-icon { font-size: 2rem; margin-bottom: 12px; }
        .download-feature h4 { margin-bottom: 8px; }
        .download-feature p { font-size: 0.9rem; opacity: 0.9; }
        .download-platforms { display: flex; justify-content: center; gap: 16px; }
        .platform-badge {
            display: flex; align-items: center; gap: 10px; padding: 14px 28px;
            border-radius: 50px; background: rgba(255,255,255,0.2); color: white;
            text-decoration: none; font-weight: 600; transition: all 0.3s;
        }
        .platform-badge:hover { background: rgba(255,255,255,0.3); }
        .platform-badge-icon { flex-shrink: 0; }
        
        /* Footer */
        .footer {
            background: #1a1a1a; color: white; padding: 64px 0 32px;
        }
        .footer-grid {
            display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px;
        }
        .footer-brand p {
            color: rgba(255,255,255,0.6); margin-top: 16px; line-height: 1.8;
        }
        .footer-col h4 { margin-bottom: 20px; }
        .footer-col ul { list-style: none; }
        .footer-col li { margin-bottom: 12px; }
        .footer-col a {
            color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.3s;
        }
        .footer-col a:hover { color: white; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 28px;
            text-align: center;
            color: rgba(255,255,255,0.5);
            font-size: 0.85rem;
            line-height: 1.9;
        }
        .footer-bottom p { margin: 4px 0; }
        .footer-bottom a {
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .footer-bottom a:hover { color: #fff; }
        .footer-bottom .footer-copyright {
            font-weight: 600;
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
            margin-bottom: 6px;
        }
        .footer-bottom .footer-filing { color: rgba(255,255,255,0.55); }
        .footer-bottom .footer-filing .sep {
            margin: 0 10px;
            color: rgba(255,255,255,0.25);
        }
        .footer-bottom .ebsr-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-bottom .ebsr-link img {
            height: 32px;
            width: auto;
            vertical-align: middle;
            opacity: 0.9;
            border: 0;
            transition: opacity 0.3s ease;
        }
        .footer-bottom .ebsr-link:hover img { opacity: 1; }
        .footer-bottom .ebsr-text { color: rgba(255,255,255,0.7); }
        .footer-bottom .footer-report {
            color: rgba(255,255,255,0.45);
            font-size: 0.8rem;
            margin-top: 4px;
        }
        .footer-bottom .footer-report em {
            font-style: normal;
            color: rgba(255,255,255,0.35);
            margin-left: 2px;
        }
        @media (max-width: 768px) {
            .footer-bottom { font-size: 0.78rem; line-height: 2; }
            .footer-bottom .footer-filing .sep {
                display: block;
                height: 0;
                visibility: hidden;
                margin: 0;
            }
            .footer-bottom .footer-filing a,
            .footer-bottom .footer-filing .ebsr-link {
                display: inline-block;
                margin: 4px 6px;
            }
        }
        
        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container { grid-template-columns: 1fr; text-align: center; }
            .hero-visual { margin-top: 40px; }
            .hero-actions { justify-content: center; }
            .hero-stats { justify-content: center; }
            .products-grid { grid-template-columns: repeat(2, 1fr); }
            .screenshots-carousel { grid-template-columns: repeat(2, 1fr); }
            .about-grid { grid-template-columns: 1fr; }
            .about-image {
                display: flex;
                justify-content: center;
                align-items: center;
            }
            .download-features { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .section-title { font-size: 2rem; }
            .hero .container { grid-template-columns: 1fr; text-align: center; }
            .hero-title { font-size: 2.5rem; }
            .hero-actions { justify-content: center; flex-wrap: wrap; }
            .hero-stats { justify-content: center; }
            .hero-visual { margin-top: 40px; }
            .products-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
            .product-card { padding: 18px 12px; }
            .product-card h3 { font-size: 1rem; line-height: 1.3; }
            .product-card p { font-size: 0.8rem; line-height: 1.4; }
            .product-icon-img { width: 52px; height: 52px; margin-bottom: 12px; }
            .screenshots-carousel { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .download-features { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .hero-actions { flex-direction: column; }
            .hero-stats { flex-direction: column; gap: 20px; }
            .css-phone { width: 200px; height: 400px; }
            .css-phone-notch { width: 80px; height: 22px; }
            .iphone17-frame { width: 160px; height: 340px; border-radius: 32px; }
            .iphone17-frame::before { width: 60px; height: 16px; }
            .iphone17-screen { border-radius: 24px; }
        }
    
        
        /* iPhone 17 Style Phone Shell */
        .iphone17-frame {
            width: 240px;
            height: 500px;
            background: #1a1a1a;
            border-radius: 44px;
            padding: 8px;
            box-shadow:
                0 0 0 1px rgba(255,255,255,0.1),
                0 20px 50px rgba(0,0,0,0.4),
                inset 0 0 0 1px rgba(255,255,255,0.05);
            position: relative;
            overflow: hidden;
        }
        .iphone17-frame::before {
            content: '';
            position: absolute;
            top: 8px;
            left: 50%;
            transform: translateX(-50%);
            width: 90px;
            height: 24px;
            background: #1a1a1a;
            border-radius: 0 0 16px 16px;
            z-index: 10;
        }
        .iphone17-frame::after {
            content: '';
            position: absolute;
            top: 14px;
            left: 50%;
            transform: translateX(-50%);
            width: 8px;
            height: 8px;
            background: #d1d1d6;
            border-radius: 50%;
            z-index: 11;
        }
        .iphone17-screen {
            width: 100%;
            height: 100%;
            border-radius: 36px;
            overflow: hidden;
            background: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .iphone17-screen img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        /* Side buttons */
        .iphone17-btn-vol {
            position: absolute;
            top: 100px;
            left: -2px;
            width: 3px;
            height: 32px;
            background: #333;
            border-radius: 2px 0 0 2px;
        }
        .iphone17-btn-power {
            position: absolute;
            top: 140px;
            right: -2px;
            width: 3px;
            height: 42px;
            background: #333;
            border-radius: 0 2px 2px 0;
        }
        .iphone17-frame .iphone17-btn-vol + .iphone17-btn-vol {
            top: 140px;
        }
        .iphone17-frame .iphone17-btn-vol + .iphone17-btn-vol + .iphone17-btn-vol {
            top: 180px;
        }
        @media (max-width: 768px) {
            .iphone17-frame {
                width: 180px;
                height: 380px;
                border-radius: 36px;
                background: #1a1a1a;
            }
            .iphone17-frame::before { width: 70px; height: 18px; border-radius: 0 0 12px 12px; }
            .iphone17-frame::after { width: 6px; height: 6px; top: 10px; }
            .iphone17-screen { border-radius: 28px; }
        }
        /* Scroll micro-animation */
        .scroll-reveal {
            transition: opacity 0.8s ease, transform 0.8s ease;
        }
        .scroll-reveal.scroll-reveal-visible {
            opacity: 1 !important;
            transform: translateY(0) !important;
        }

        /* Product card stagger animation */
        .product-card {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
        }
        .product-card.card-visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Screenshot item stagger animation */
        .screenshot-item {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .screenshot-item.card-visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Download feature stagger animation */
        .download-feature {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .download-feature.card-visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Hover progress bar from center */
        .product-card::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 3px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            transition: width 0.4s ease, left 0.4s ease;
            border-radius: 3px 3px 0 0;
        }
        .product-card {
            position: relative;
            overflow: hidden;
        }
        .product-card:hover::after {
            width: 80%;
            left: 10%;
        }
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        }